Depending on conditions, rust can form in seconds, especially if it was exposed to heat prior and chemicals. You can try this with mild steel and denatured alcohol. If the humidity is right, you'll have rust in less than 20 seconds.
Depending on conditions, rust can form in seconds, especially if it was exposed to heat prior and chemicals. You can try this with mild steel and denatured alcohol. If the humidity is right, you'll have rust in less than 20 seconds.